摘要 |
The invention relates to a resonator (11) with a balance (13) and balance spring (15) including a balance (13) mounted on a staff (17), a balance spring (15) integral with a collet (14) and mounted on said staff. According to the invention, the collet (14) includes an integral protruding portion or bump (16) forming a pin arranged for cooperating with an escape system. The invention concerns the field of timepiece movements.
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